Recovery device for rhodium in low-concentration rhodium-containing organic waste liquid

Abstract

The utility model relates to the technical field of rhodium recovery, in particular to a rhodium recovery device for low-concentration rhodium-containing organic waste liquid, which comprises a reaction box, a filter box and a base, a feeding opening is formed in the top of the reaction box, a group of rotating ring frames are rotationally arranged in the top of the base, a plurality of supporting columns are annularly installed at the top of each rotating ring frame at equal intervals, a group of filtering boxes are installed at the tops of the supporting columns through bottom plates, and a group of communicating sleeves are arranged on the upper sides in the filtering boxes in a lifting mode; the bottom end of the reaction box is provided with a group of communicating insertion cylinders with openings in the bottoms, the communicating sleeve moving to the position under the reaction box ascends upwards to be communicated with the communicating insertion cylinders in an inserted mode, and the interior of the reaction box located above the communicating insertion cylinders is provided with a group of liquid blocking mechanisms; the three processes of reaction in the reaction box, filtration and separation in the filter box and falling and output of sediments in the reaction box are synchronously carried out, so that the operation efficiency of the device is greatly improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of rhodium recovery, in particular to a rhodium recovery device for low-concentration rhodium-containing organic waste liquid. Background Art

[0002] Rhodium is a rare and expensive precious metal. Its recovery from waste liquid has important economic value. The recovery of rhodium from low-concentration rhodium-containing organic waste liquid is a complex process. When designing a rhodium recovery device, it is necessary to consider the characteristics of the waste liquid (such as pH value, temperature, rhodium concentration, type and concentration of organic matter, etc.), as well as recovery efficiency, cost and environmental impact.

[0003] There are various ways to recover rhodium from low-concentration rhodium-containing organic waste liquid. The most commonly used one is the precipitation method, which adds specific chemical reagents to form an insoluble precipitate of rhodium, and then separates the precipitate by filtering or centrifugation, so as to effectively recover the rhodium. However, the existing precipitation method has the problem that when the low-concentration rhodium-containing organic waste liquid reacts with the chemical reagent, the precipitate formed gradually accumulates inside the reaction tank, and then after sufficient precipitation, the upper reaction liquid is extracted, and then the precipitate is output for filtering operation. In this process, the problem is that each time the precipitate is output, the upper liquid needs to be extracted in advance. The addition of this step will seriously reduce the efficiency of the overall recovery process.

[0004] Therefore, in view of the above-mentioned problems, the present technical solution proposes a rhodium recovery device for low-concentration rhodium-containing organic waste liquid. Utility Model Content

[0005] The utility model aims to provide a rhodium recovery device for low-concentration rhodium-containing organic waste liquid to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for recovering rhodium from low-concentration rhodium-containing organic waste liquid, comprising a reaction box, a filter box, and a base; one side of the reaction box is fixed to the base by a bracket, and a feed port is provided on the top of the reaction box, which is used to input the low-concentration rhodium-containing organic waste liquid to be recovered and a specific chemical agent into the reaction box for reaction to form an insoluble precipitate, which is then gradually accumulated at the bottom of the reaction box under the action of gravity; the base is arranged in a circular structure, a group of rotating ring frames are rotatably arranged inside the top of the base, a plurality of support columns are equidistantly arranged in a ring on the top of the rotating ring frames, a group of filter boxes are installed on the top of the support columns through the bottom plate, and the filter boxes pass directly below the reaction box respectively under the rotation of the rotating ring frames, and a group of connecting sleeves are lifted and lowered on the upper side of the filter box A group of communicating plugs with bottom openings are installed at the bottom end of the reaction box, and a communicating sleeve moved to the bottom of the reaction box rises upward and is plugged into and connected with the communicating plugs, thereby receiving the precipitate formed by the reaction inside the reaction box; a group of liquid blocking mechanisms are arranged inside the reaction box above the communicating plugs, and a discharge port is opened on the reaction box on the upper side of the liquid blocking mechanism. The liquid blocking mechanism is used to separate the precipitate on the lower side of the reaction box from the liquid in the upper layer, and the upper layer of liquid is directly discharged outward through the discharge port without the need to use kinetic energy to drive the discharge, and the precipitate on the lower side is directly discharged under gravity, and at the same time, the three groups of rotating filter boxes are used to realize the reaction inside the reaction box, the filtering separation inside the filter box, and the falling output of the precipitate inside the reaction box. The three processes are carried out simultaneously, which greatly improves the operation efficiency of the device to a certain extent.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows: by arranging a liquid-blocking mechanism at the bottom of the reaction box in conjunction with three groups of rotatable filter boxes on a rotating ring frame, and then utilizing a liftable connecting sleeve inside the filter box to be connected with a connecting plug-in sleeve at the bottom of the reaction box, it is convenient to separate and output the solid and liquid after the reaction inside the reaction box, thereby saving the time for early output of the liquid and subsequent output of the precipitate, and by arranging multiple groups of filter boxes for receiving, the processing speed of the precipitate is also improved to a certain extent, thereby greatly improving the overall recovery efficiency and recovery volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The present invention is a schematic diagram of the main structure of a device for recovering rhodium from low-concentration rhodium-containing organic waste liquid.

[0009] Figure 2 The present invention is a schematic diagram of the top view of the structure of a rotating ring frame in a rhodium recovery device for low-concentration rhodium-containing organic waste liquid.

[0010] Figure 3 The present invention is a schematic diagram of the structure of a liquid blocking mechanism in a rhodium recovery device for low-concentration rhodium-containing organic waste liquid.

[0011] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of A.

[0012] Figure 5 for Figure 1 Schematic diagram of the enlarged structure of B;

[0013] Wherein: reaction box 10, filter box 11, filter plate bin 12, centrifugal box 13, bottom plate 14, support column 15, rotating ring frame 16, connecting plate 17, rotating motor 19, connecting rod 20, bracket 21, liquid blocking port 22, connecting plug 23, connecting sleeve 24, arc positioning ring 25, positioning ring groove 26, filter plate 27, V-shaped channel 28, material receiving channel 29, hanging rod 30, rotating block 31, rotating slide rail 32, lifting groove 33, connecting base block 34, hydraulic rod 35, automatic baffle 36, push-pull rod 38, nut 39, screw 40, connecting rod 41, servo motor 42, positioning hole 43, positioning pin 44, base 45. DETAILED DESCRIPTION

[0014] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0015] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0017] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0018] See also Figure 1 , a device for recovering rhodium from low-concentration rhodium-containing organic waste liquid, comprising a reaction box 10, a filter box 11, and a base 45; one side of the reaction box 10 is fixed on the base 45 by a bracket 21, and a feed port is provided on the top of the reaction box 10 for inputting the low-concentration rhodium-containing organic waste liquid to be recovered and a specific chemical agent into the reaction box 10 for reaction to form an insoluble precipitate, which is then gradually accumulated at the bottom of the reaction box 10 under the action of gravity, and the base 45 is set to a circular structure, a group of rotating ring frames 16 are rotatably arranged inside the top of the base 45, and a plurality of support columns 15 are annularly and evenly spaced on the top of the rotating ring frame 16, and a group of filter boxes 11 are installed on the top of the support columns 15 through a bottom plate 14, and the filter boxes 11 pass directly below the reaction box 10 under the rotation of the rotating ring frame 16, and a group of connecting sleeves 24 are lifted and arranged on the upper side of the filter box 11, A group of connecting plugs 23 with bottom openings are installed at the bottom end of the box 10. The connecting sleeve 24 moved to the bottom of the reaction box 10 rises upward and is plugged into the connecting plug 23 to connect, thereby receiving the precipitate formed by the reaction inside the reaction box 10. A group of liquid blocking mechanisms are arranged inside the reaction box 10 above the connecting plug 23. A liquid discharge port is opened on the reaction box 10 on the upper side of the liquid blocking mechanism. The liquid blocking mechanism is used to separate the precipitate on the lower side of the reaction box 10 from the liquid in the upper layer. The upper layer of liquid is directly discharged outward through the liquid discharge port without the need to use kinetic energy to drive the discharge. The precipitate on the lower side is directly discharged under gravity. At the same time, the three groups of rotating filter boxes 11 are arranged to realize the reaction inside the reaction box 10, the filtering separation inside the filter box 11 and the falling discharge of the precipitate inside the reaction box 10. The three processes are carried out simultaneously, which greatly improves the operating efficiency of the device to a certain extent.

[0019] In the embodiment of the present invention, a filter plate bin 12 and a centrifugal box 13 are sequentially arranged inside the filter box 11 from top to bottom. The top of the filter plate bin 12 is connected to the bottom of the connecting sleeve 24. The sediment input along the connecting sleeve 24 is transferred to the inside of the filter plate bin 12 for multi-stage filtration treatment. The bottom end of the filter plate bin 12 is non-contactly connected to the top of the centrifugal box 13. The sediment filtered inside the filter plate bin 12 is transferred to the inside of the centrifugal box 13 under the action of gravity for centrifugal treatment, and finally outputted through the inside of the centrifugal box 13 to collect rhodium substances.

[0020] Specifically, the top of the centrifugal box 13 is rotatably connected to the bottom of the filter plate bin 12, that is, when the centrifugal box 13 is kept rotating, it can stably receive the sediment falling from the filter plate bin 12, and at the same time, a V-shaped channel 28 is provided at the bottom of the filter plate bin 12, and the V-shaped channel 28 transfers the filtered sediment to the bottom of the filter plate bin 12;

[0021] A plurality of filter plates 27 are installed at equal intervals inside the filter plate bin 12 , and the filter apertures of the filter plates 27 decrease gradually from top to bottom, thereby performing multi-stage filtering treatment on the sediment.

[0022] It should be noted that, since the liquid-blocking mechanism is arranged above the centrifugal box 13, when the amount of sediment formed inside the reaction box 10 accumulates to the lower side of the liquid-blocking mechanism, the liquid-blocking mechanism can be started to separate the solid and liquid. At this time, the bottom of the reaction box 10 is opened, and under the action of gravity, the sediment is transferred along the connecting plug 23 to the connecting sleeve 24. Although a small amount of liquid will be contained in the sediment during solid-liquid separation, it does not affect the subsequent filtering treatment operation of the sediment.

[0023] In one embodiment of the present invention, see Figure 4 A material receiving channel 29 is provided at the top of the centrifugal box 13, and a plurality of hanging rods 30 are installed at equal intervals in a ring outside the material receiving channel 29. A rotating block 31 is installed at the top of the hanging rod 30. A rotating slide rail 32 is provided at the bottom of the filter plate bin 12 corresponding to the top of the rotating block 31. The rotating block 31 is placed inside the rotating slide rail 32 for rotation, thereby maintaining a stable rotation connection between the centrifugal box 13 and the lower side of the filter plate bin 12;

[0024] The diameter of the receiving channel 29 is larger than the bottom diameter of the filter plate bin 12, and is used to fully receive the sediment falling from the filter plate bin 12;

[0025] See also Figure 5 A plurality of arc-shaped positioning rings 25 are installed at equal intervals along the vertical direction on the circumferential outer wall of the connecting plug 23, and positioning ring grooves 26 are provided on the inner wall of the connecting sleeve 24 corresponding to the arc-shaped positioning rings 25. When the connecting sleeve 24 moves vertically and fits with the connecting plug 23, the arc-shaped positioning rings 25 are engaged with the corresponding positioning ring grooves 26 to maintain the stable connection between the connecting plug 23 and the connecting sleeve 24, and a layer of sealing gasket is provided on the inner wall of the arc-shaped positioning ring 25 to increase the sealing performance of the connecting plug 23 and the connecting sleeve 24 when they are fitted together;

[0026] A control valve is provided at the bottom of the connecting plug 23 to control the output of the sediment inside the connecting plug 23;

[0027] Two connecting blocks 34 are symmetrically installed on the upper part of the two side walls of the filter plate bin 12. Vertically distributed lifting grooves 33 are opened in the inner wall of the filter box 11 corresponding to the connecting blocks 34. The bottom of the connecting blocks 34 located inside the lifting grooves 33 is connected to a hydraulic rod 35 fixed inside the lifting grooves 33. The hydraulic rods 35 inside the lifting grooves 33 on both sides operate synchronously, thereby driving the filter plate bin 12 and the centrifugal box 13 at the bottom to move up and down synchronously, thereby controlling the connecting sleeve 24 to move up and down, and connect or separate with the connecting plug 23.

[0028] As a preferred embodiment of the present invention, the specific chemical agents input into the reaction box 10 generally include sulfiding agents, hydroxides, carbonates, etc., which can react with rhodium ions to form insoluble precipitates.

[0029] As a preferred embodiment of the present invention, refer to Figure 2 A connecting plate 17 is installed in the middle of the rotating ring frame 16 through a plurality of connecting rods 20 distributed in an annular manner. A rotating motor 19 fixed inside the base 45 is connected to the middle of the bottom end of the connecting plate 17. The rotating motor 19 is started to drive the connecting plate 17 to rotate, and then the rotating ring frame 16 is driven to rotate under the connection of the connecting rod 20, thereby driving the three groups of filter boxes 11 to rotate, and the three groups of filter boxes 11 are adjusted to operate when they are in corresponding positions.

[0030] As a preferred embodiment of the present invention, refer to Figure 3 The liquid blocking mechanism includes a liquid blocking port 22 symmetrically and laterally slidably arranged on the lower side of the reaction box 10, and two automatic baffles 36 are symmetrically and movably arranged on both sides of the liquid blocking port 22. The relatively far ends of the automatic baffles 36 are connected with a push-pull rod 38, and the push-pull rod 38 moves along the wall of the reaction box 10. The outer end of the push-pull rod 38 is connected with a nut 39 placed on one side of the outside of the reaction box 10. The middle part of the nut 39 is threadedly connected with a lead screw 40. The ends of the lead screws 40 on both sides are fixedly connected to each other through a connecting rod 41. The tooth grooves of the lead screws 40 on both sides are in opposite directions, which are used to control the relative movement of the nuts 39 on both sides. A servo motor 42 is connected to the end of one side 49, and a guide device for limiting its rotation is provided on the nut 39, that is, the servo motor 42 is started to drive the lead screw 40 to rotate, and then the nuts 39 on both sides are synchronously driven to move relative to each other, and then under the connection of the push-pull rod 38, the automatic baffles 36 on both sides are controlled to move horizontally inside the reaction box 10, so as to isolate the automatic baffles 36 up and down, and the opposite ends of the automatic baffles 36 on both sides are provided with positioning holes 43 and positioning pins 44, and when the positioning holes 43 and the positioning pins 44 are engaged, the automatic baffles 36 on both sides are in sealing contact, so as to achieve the barrier of the upper liquid;

[0031] A sealing plate is provided at the movable connection between the push-pull rod 38 and the reaction box 10 to prevent leakage of liquid or sediment inside the reaction box 10 .

[0032] As a preferred embodiment of the present invention, it should be noted that the specific operation of the centrifuge box 13 of the present technical solution adopts a conventional structure, and how to centrifuge the precipitate belongs to the prior art and will not be described in detail.

[0033] The working principle of the utility model is: in the idle position of the device, all the driving parts mentioned above, which refer to the power elements, electrical components and the adapted power supply, are connected through wires, and the electrical connections are completed in the working order of each electrical component. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process, and does not explain the electrical control. During operation, the low-concentration rhodium-containing organic waste liquid is input into the reaction box 10, and then a specific chemical agent is added, and then placed in the reaction box 10 for reaction. At this time, the connecting disk 17 is operated to drive the rotating ring frame 16 to rotate, and one group of filter boxes 11 is transferred to the bottom of the reaction box 10, and then the hydraulic rod 35 is started to lift the connecting sleeve 24 and connect it with the connecting plug 23, and then wait for the formation of sediment inside the reaction box 10. After the sediment is formed to a certain content, the servo motor 42 is started to drive the screw 40 to rotate, and then the push-pull rods 38 on both sides are driven. The ends of the automatic baffles 36 are fitted together to separate the solid and liquid inside the reaction box 10, and then the bottom of the reaction box 10 is opened, and the precipitate is transferred to the filter plate bin 12 through the connecting plug 23 and the connecting sleeve 24 under gravity for filtration, and then transferred to the centrifugal box 13 for centrifugal treatment, and finally output through the bottom of the centrifugal box 13, and the liquid on the upper side of the automatic baffle 36 inside the reaction box 10 is also directly discharged through the drain port; after the precipitate is transferred to the inside of the filter box 11, the bottom of the reaction box 10 is closed, the automatic baffle 36 is opened, and the next round of reaction is carried out inside the reaction box 10, and then the rotating ring frame 16 is rotated to transfer another group of filter boxes 11 to the bottom of the reaction box 10, and at the same time, the connecting plug 23 is connected with the connecting sleeve 24, waiting for the next precipitate output and reception, in this way, through the three groups of filter boxes 11 rotating, in cooperation with the automatic baffle 36, the waste liquid inside the reaction box 10 is continuously reacted, precipitated, filtered, collected and recycled.

[0034] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A device for recovering rhodium from low-concentration rhodium-containing organic waste liquid, characterized in that: The invention comprises a reaction box (10), a filter box (11), and a base (45); one side of the reaction box (10) is fixed to the base (45) by a bracket (21); a feed port is provided on the top of the reaction box (10); the base (45) is arranged in a circular structure; a group of rotating ring frames (16) are rotatably arranged inside the top of the base (45); a plurality of support columns (15) are arranged at equal intervals on the top of the rotating ring frame (16); the tops of the support columns (15) are arranged through a bottom plate (14) A group of filter boxes (11) are installed, and a group of connecting sleeves (24) are lifted and lowered on the upper side of the filter boxes (11). A group of connecting plugs (23) with bottom openings are installed on the bottom end of the reaction box (10). The connecting sleeves (24) moved to the bottom of the reaction box (10) are lifted and connected with the connecting plugs (23). A group of liquid blocking mechanisms are arranged inside the reaction box (10) above the connecting plugs (23), and a liquid discharge port is opened on the reaction box (10) on the upper side of the liquid blocking mechanisms.

2. A rhodium recovery device for low-concentration rhodium-containing organic waste liquid according to claim 1, characterized in that: The filter box (11) is provided with a filter plate bin (12) and a centrifugal box (13) in sequence from top to bottom. The top of the filter plate bin (12) is connected to the bottom of the connecting sleeve (24), and the bottom end of the filter plate bin (12) is connected to the top of the centrifugal box (13) in a non-contact manner.

3. A rhodium recovery device for low-concentration rhodium-containing organic waste liquid according to claim 2, characterized in that: The top of the centrifugal box (13) is rotatably connected to the bottom of the filter plate bin (12), and a V-shaped channel (28) is provided in the bottom of the filter plate bin (12).

4. A rhodium recovery device for low-concentration rhodium-containing organic waste liquid according to claim 3, characterized in that: The centrifugal box (13) is provided with a material receiving channel (29) at the top, a plurality of hanging rods (30) are installed at equal intervals in a ring outside the material receiving channel (29), a rotating block (31) is installed at the top of the hanging rod (30), a rotating slide rail (32) is provided at the bottom of the filter plate bin (12) corresponding to the top of the rotating block (31), and the rotating block (31) is placed inside the rotating slide rail (32) to rotate.

5. A rhodium recovery device for low-concentration rhodium-containing organic waste liquid according to claim 4, characterized in that: A plurality of arc-shaped positioning rings (25) are installed at equal intervals on the circumferential outer wall of the connecting plug tube (23) in the vertical direction, and positioning ring grooves (26) are provided on the inner wall of the connecting sleeve (24) corresponding to the arc-shaped positioning rings (25). A control valve is provided at the inner bottom of the connecting plug tube (23).

6. A rhodium recovery device for low-concentration rhodium-containing organic waste liquid according to claim 5, characterized in that: Two connecting blocks (34) are symmetrically mounted on the upper part of the two side walls of the filter plate bin (12); vertically distributed lifting grooves (33) are opened in the inner wall of the filter box (11) corresponding to the connecting blocks (34); the bottom of the connecting blocks (34) located inside the lifting grooves (33) is connected to a hydraulic rod (35) fixed inside the lifting grooves (33); and the hydraulic rods (35) inside the lifting grooves (33) on both sides operate synchronously.

7. A rhodium recovery device for low-concentration rhodium-containing organic waste liquid according to claim 6, characterized in that: A connecting plate (17) is installed in the middle of the rotating ring frame (16) through a plurality of connecting rods (20) distributed in an annular manner. A rotating motor (19) fixed inside the base (45) is connected to the middle of the bottom end of the connecting plate (17).

8. A rhodium recovery device for low-concentration rhodium-containing organic waste liquid according to claim 7, characterized in that: The liquid blocking mechanism comprises a liquid blocking port (22) symmetrically and laterally slidably arranged on the lower side of the reaction box (10), two automatic baffles (36) symmetrically and movably arranged on both sides of the liquid blocking port (22), the ends of the automatic baffles (36) being relatively far away from each other are each connected to a push-pull rod (38), the push-pull rod (38) is movable along the wall of the reaction box (10), the outer end of the push-pull rod (38) is connected to a nut (39) arranged on one side of the outside of the reaction box (10), the middle part of the nut (39) is threadedly connected to a lead screw (40), one end of the lead screws (40) on both sides is fixedly connected to each other by a connecting rod (41), the tooth grooves of the lead screws (40) on both sides are in opposite directions, one end of one side (49) is connected to a servo motor (42), and a guide device for limiting the rotation of the nut (39) is arranged on the nut (39).

9. A rhodium recovery device for low-concentration rhodium-containing organic waste liquid according to claim 8, characterized in that: Positioning holes (43) and positioning pins (44) are provided at opposite ends of the automatic baffles (36) on both sides.

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